24c02.lst

89s51单片机做的计数器

C51 COMPILER V7.06   24C02                                                                 12/07/2006 03:10:11 PAGE 1   


C51 COMPILER V7.06, COMPILATION OF MODULE 24C02
OBJECT MODULE PLACED IN 24c02.OBJ
COMPILER INVOKED BY: C:\Keil\C51\BIN\C51.EXE 24c02.c BROWSE DEBUG OBJECTEXTEND

stmt level    source

   1          #include "24c02.h"
   2          
   3          void x24c02_delay(char x)
   4          {
   5   1      int i;
   6   1      for(i=0;i<x;i++);
   7   1      }
   8          
   9          void x24c02_start()
  10          {
  11   1      SDA = 1; 
  12   1      SCL = 1; 
  13   1      SDA = 0; 
  14   1      SCL = 0; 
  15   1      }
  16          
  17          void x24c02_stop()
  18          {
  19   1      SDA=0;
  20   1      SCL=1;
  21   1      SDA=1;
  22   1      }
  23          void x24c02_writex(char j)
  24          {
  25   1      char i,temp;
  26   1      temp=j;
  27   1      for (i=0;i<8;i++)
  28   1      {
  29   2        temp=temp<<1; 
  30   2        SCL=0; 
  31   2        SDA=CY; 
  32   2        SCL=1; 
  33   2      }
  34   1      SCL=0;
  35   1      SDA=1;
  36   1      }
  37          char x24c02_readx()
  38          {
  39   1      char i,j,k=0;
  40   1      SCL=0;
  41   1      SDA=1;
  42   1      for (i=0;i<8;i++)
  43   1      {
  44   2        SCL=1;
  45   2        if (SDA==1) j=1;
  46   2        else j=0;
  47   2        k=(k<<1)|j;
  48   2        SCL=0;
  49   2      }
  50   1      return(k);
  51   1      }
  52          void x24c02_clock()
  53          {
  54   1      char i=0;
  55   1      SCL=1;
C51 COMPILER V7.06   24C02                                                                 12/07/2006 03:10:11 PAGE 2   

  56   1      while ((SDA==1)&&(i<155))i++;//while ((SDA==1)&&(i<255))i++;  155
  57   1      SCL=0;
  58   1      }
  59          
  60          void x24c02_init()
  61          {
  62   1      SCL = 1;
  63   1      SDA = 1;
  64   1      }
  65          
  66          char x24c02_read(unsigned int address)
  67          {
  68   1      char i;
  69   1      x24c02_start();
  70   1      x24c02_writex(0xa0);
  71   1      x24c02_clock();
  72   1      x24c02_writex(address);
  73   1      x24c02_clock(); 
  74   1      x24c02_start();
  75   1      x24c02_writex(0xa1); 
  76   1      x24c02_clock();
  77   1      i=x24c02_readx(); 
  78   1      x24c02_stop();
  79   1      x24c02_delay(10);
  80   1      return(i);
  81   1      }
  82          
  83          void x24c02_write(unsigned int address, char info)
  84          {
  85   1      EA=0;
  86   1      x24c02_start();
  87   1      x24c02_writex(0xa0);
  88   1      x24c02_clock();
  89   1      x24c02_writex(address);
  90   1      x24c02_clock();
  91   1      x24c02_writex(info);
  92   1      x24c02_clock();
  93   1      x24c02_stop();
  94   1      EA=1;
  95   1      //x24c02_delay(10);//x24c02_delay(50);
  96   1      }
  97          
  98          /*void x24c02_writestr(char address, unsigned char *wdata, unsigned char wlen)
  99          {
 100          unsigned char k=0;
 101          do 
 102          {
 103            x24c02_write(address+k, *(wdata + k));
 104            k++;
 105          } while(k < wlen);
 106          }  */
 107          
 108          /*void x24c02_readstr(unsigned int address, unsigned char *rdata, unsigned char rlen)
 109          {
 110          unsigned char k=0;
 111          do 
 112          {
 113            rdata[k] = x24c02_read(address+k);
 114            k++;
 115          } while(k < rlen);
 116          }   */

C51 COMPILER V7.06   24C02                                                                 12/07/2006 03:10:11 PAGE 3   


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    212    ----
   CONSTANT SIZE    =   ----    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =   ----    ----
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


C51 COMPILATION COMPLETE.  0 WARNING(S),  0 ERROR(S)